Although Valkai made it safely through, others were not so lucky.
2nd seed Escudero (ESP) fought back against Jun Mo Sung (KOR) to level after being a long way behind, but the Korean regrouped and closed the match out 15-12.
3rd seed Stefano Scepi (ITA) also sucummbed to a Korean, being beaten 15-14 by Woo Sun Kim.
But all this bode well for GBR's Curtis Miller, who after being behind by a couple of hits for most of the fight was able to bring it back and close it out against USA's Michael Mills. He now faces Mariusz Wrobel (POL) whic overcame 8th seed Tomasso Saviozzi (ITA).
Photo courtesy of Denise Wilson